Ash-conveying means



April 15, 1952 J. K. DUKAs ASH-CONVEYING MEANS Filed March 5, 1947 DE EEanual una :man muuu DE :DE ummm.

Ummm Duna nunm- UUE Duna ummm Unna anni unna INVENToR. JWM-s EUA/A5 f//sATTV Patented Apr. 15, 1952 l p Asnicoivvamc iumuiisI I JamesK.Dukas,ldwardsville,Pa.

Application March 3,1947, sei-laine. 731,947

l 1 claim.' (ci. 19s-224i This invention relates to an ash-conveyingmeans and lhas for one of its objects the production of a simple andeiilcient conveyor for automatically removing ashes from theash-receiving compartment of a furnace'to a distant point of disposal. L

Other objects and advantages of the present invention will appearthroughout the following specication and claim.

In the drawing:

Figure 1 is a'fragmentary front elevational view of a furnaceillustrating the ash-removing mechanism, the ash-removing housing beingshown in longitudinal section;

Figure 2 is a longitudinal sectional view taken on line 2-2 o f Figurel, a portion of the housing being shown in top plan;

. Figure 3 is a longitudinal sectional view of a portion of theash-removing frame;

Figure 4 is a fragmentary sectional perspective view of a fportion ofthe ash-removing frame'. illustratingfthe manner of connecting the endsporting thejurnace 40, the housing 4| extend- -y ing laterally Vof thefurnace 4|, as shown in Figure 1. Thermostats 42 and 43 are suitablylocated to control the motor 44 which accelerates the driving-i`mechanism of the shaking and grateoperating mechanism The thermostat 42-is preferably-placed adjacentthe base of the furl nace 40. Trap doors45 are conveniently located in the top ofthe housing 4| near thefurnaceto permit access to the housing 4| adjacent the grate. A grate 46is supported below the furnace within the housing 4|. A shaker grid 41is slidably mounted over the grate 46 for reciproeating movement. Thegrid 41 is provided with parallelfarms 48 at one end and similar arms 49at its opposite or formed end. The arms 48 work between the rollers 50at one end of the housing 4| and thearms 49 work between the rollers` 5|at the opposite end the housing 4|. Comb rakes 52 and 53vv are suspendedfrom the top of the housing 4|I at opposite sides of the furnace'flll toprevent large cakes of ashes from passing beyond the grate 46 andfalling upon the ash'- conveyor mechanism below. These cakes, if any,will be broken-up as the grid reciprocates and the cakes of ashes arethrown against the 2 grate 46 and is actuated by links 55 from theoperating crank 56, the grid 41 also being actuated simultaneouslytherewith by suitable links such as the link 51 shown in Figure 2,connected to the crank 56. The crank 56 is driven by the drive mechanism51 from the motor 41 or other suitable power elements.

Itshould be noted that the flanged ends 6l fit nat against thetransversely spaced upper and lower side rails to brace the ends of theraker plates and to firmly hold the raker plates between thetransversely spaced side rails.

The ash conveyor 54 comprises a pair of lower longitudinal side rails 58which rest upon and are anchored upon the base of the housing 4|, and apair of upper side rails 59 which are slidably mounted on the lowerrails 58. The upper rails 59 are connected at one end to the links 55,which links 55 are also connected to the crank 56. These rails 58 and 59are connected transversely by the raker plates 60. Each raker plate 60is provided with anged ends 6l. Each anged end 6| is provided with alongitudinal slot 62. Bracing rods 63 extend transversely between theupper rails 59 and pass through .the upper ends of the slots 62 tosuspend the raker plates 60 between the rails 59. Pins or other securingelements 64 are located near the upper edges of the lower rails 58 andpass through the slots 62 adjacent the rods 63. As the upper rails 59are pulled toward the crank 56 or in the direction shown by the arrow inFigure 3. the raker plates 60 will move from a substantially vertical toa substantially horizontal position, and when the plates 60 are returnedto a vertical position by the further rotation of the crank 56, theashes which may have fallen upon the plates 60 or which may be betweenthe adjacent plates will be pushed toward the discharge outlet 65 of thehousing 4L As this operation continues, the ashes in the rear Will pushthe forward ashes toward the opening 65 and cause a continuous stream ofashes to be moved longitudinally of the ash conveyor 54. The swingingplates 60 will cause the ashes to be moved longitudinally of the ashconveyor 54 by a pushing and tossing action as the plates 60 swing froma horizontal to a vertical position as the upper rails 59 reciprocateover the lower rails 58. The discharge end 66 is provided with a topgate 61 which may be swung upwardly so that access may be had to theinterior of the discharge end 66. An outer end gate 68 is also providedas shown in Figure 1 to facilitate access to the discharge end of thehousing4l.

Having described v the claimed as new is:

A mechanism of the class described comprising a. housing, anash-conveying means comprising a pair of lower longitudinal transverselyspaced side rails, a base supporting said side rails, a pair of upperparallel transversely spaced side rails slidable upon the firstmentioned rails, actuating means connected to said upper side rails, aplurality of transversely extending rakerplates extending between thetransversely spaced side rails, each raker plate having opposite angedends tting at against the transversely spaced side rails to brace theends of the raketv platea, each ilanged end having a longitudinal slot,guiding means carried by the opposite upper rai-ls'and extending throughthe upper ends. of `Said slots4 to suspend the raker plates between theopposite invention, what is rails, connecting means located near theupper the movement when the upper side rails are moved longitudinally inthe opposite direction.

JAMES K. DUKAS.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 512,735 Muller Jan. 16, 1894623,284 Kudlicz Apr. 18, 1899 704,540 Hill July 15, 1902 961,486, DeweyJune 14, 1910 1,426,648 Johns Aug. 22, 1922 1,933,656. Carter et al.Nov. 7, 1933 2,130,492 Hapman Sept. 20, 1938 2,176,563' Schwitzer et al.Oct. 1'7, 1939 2,270,265- Carter Jan. 20, 1942 2,381,185 Rogers et-al.Aug. 7, 1945 FOREIGN PATENTS Number Country Date 432,879 Great BritainAug. 6, 1935'

